Stronger Muscle

Just before I go to buy creatine supplements, I have been told that my muscle is stronger and improved so much. I do query is it good enough to keep on the daily simple stretching exercises will make my muscle strong enough to avoid the back pain comes back. I must do it twice a day. This is advised by physio. Although the stretching exercises are simple but I feel hard to complete all the steps with the perfect performance as the physio required. This is why I considering to try on muscle boost up supplements. Anyway, I will give myself another month to continue the exercises and see how best I can do before I started to get help from the supplement.